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Exobasidium diseases occurring on camellias in Korea

XV World Forestry Congress, 2-6 May 2022










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    A preliminary study on ecological features of two natural enemies against two vectors of pine wilt disease for mass rearing in Korea
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Two species of the genus Monochamus (Coleoptera: Cerambycidae), M. alternatus and M. saltuarius are well-known as vectors of the pine wilt disease and they causes economically damages in South Korea. Among various control methods to reduce the density of vectors, a method by biological control agents (natural enemies) is eco-friendly indispensable. Since 2017, we have carried out the studies on the parasitic natural enemies againt for the vector species and found two parasitoids, Spathius verustus Chao, 1977 (Braconidae) and Cyanopterus flavator (Fabricius, 1793) (Bracondiae), would be a useful agents for biological controls. For accumulation of biological data, we conducted a preliminary study on life span and parasitic rate of two parasitic wasps against for two vector species. As results, we found that S. verustus has the longest adult life span of 33.4±19.2 days (avg.) in M. alternatus (T=30°C, H=60%) and C. flavator has the longest adult life span of 25.1±10.6 days (avg.) in M. alternatus (T=25°C, H=60%). The average parasitic rate (62.5%) of S. verustus was highest in M. alternatus (T=30°C, H=60%). In addition, it is confirmed that the offsprings of S. verustus can be made by parthenogenetic reproducton. Keywords: Research ID: 3622037
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    Article
    A study on a specialized flight safety management method to prevent accidents of forest fire-fighting helicopters (Focusing on accidents that occur in the process of loading water into a helicopter)
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Climate change has had a significant impact on the frequency of forest fires and the extent of damage caused by such fires. Dry lands and strong winds have been the primary causes of large-scale forest fires, as proven by outbreak of forest fires throughout the world in the recent few years, including those in the US, Canada, Australia, and Russia. The most effective method for responding to forest fires that quickly spread through strong winds is aerial firefighting using an air tank or a helicopter. However, the lives of many crew members have been sacrificed as a result of helicopter crashes that have frequently occurred during forest fire-fighting in different parts of the world. Inability to prevent frequent accidents involving forest firefighting helicopters can give a negative perception to the pilots that forest firefighting is dangerous work, which can cause a sharp decrease in work efficiency and number of pilots taking part in forest firefighting. Moreover, protecting skilled pilots from accidents is also very important for preventing deforestation by forest fires and sustainable development. To prevent accidents of forest fire-fighting helicopters, the Flight Operations Quality Assurance (FOQA) Team was established in 2019 to collect and analyze flight data of aircrafts approaching reservoirs for recommending pilots who exceed the safe range to change their flight habits, as well as providing training opportunities to change the flight habits of pilots who are repeatedly exposed to risk samples. This article explains the flight method applied during the process of approaching reservoirs, flight data analysis method, and safety management methods on preventing crashes by improving unsafe pilot habits. Key words: helicopter accident; wildfire fighting; vortex ring state; Korea Forest Service; FOQA ID: 3622024
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    Article
    Implementation status and Suggestions for Korea’s SDG 15 (Life on Land)
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Forests take a critical role in SDGs in that SDG 15 (Life on Land) supports to prevent desertification, promote deforestation neutrality and halt biodiversity loss. At this point, this analysis aims to investigate closely detailed targets and indicators of Korea’s SDG 15 which are related to the forestry sector because South Korea is closely connected with forests territorially. Therefore, this analysis first looked into the current situation in South Korea across the targets of SDG 15 and consequently evaluated each indicator by comparing them with the related national policies. As a result, it was identified that 1) the forest-related targets and indicators involve a lot of potential of synergies and trade-off with other SDG’s indicators and 2) efforts to improve the current institutional systems are required from political, economic, social, and technological aspects. Of them, SDG 7 is significant because they can support the achievement of overall SDGs including SDG 15 if the offsets between them and SDG 15 are resolved. In addition, SDG 11 is also required to be improved over various indicators in order to reinforce the synergies with SDG 15. However, there was a limitation to evaluate all the indicators of K-SDG 15 since the whole detailed targets and indicators of K-SDG have not yet been completed in terms of systems for their implementation and evaluation. Therefore, this analysis also suggests the need to complete the system in the near future. Keywords: K-SDG, Forests, Synergies, Trade-off, Attainability ID: 3623884

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